title: Polyarticular pigmented villonodular synovitis.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011859:Radiography; D013585:Synovitis / Q000000981:diagnostic imaging*; D013586:Synovitis, Pigmented Villonodular / Q000000981:diagnostic imaging* / Q000473:pathology